Pump Solutions Group Neptune Series 560 dia-PUMP User Manual

Page 12

5.0

INSTALLATION OUTDOORS

The “dia-pump” is a totally enclosed pump which can be used outdoors or indoors. When installed outdoors, make sure that
the pump is protected against extremes of nature as follows:

5.0.1

Running of the pump when exposed to tropical sunshine, with ambient temperature above 90ºF (32ºC) would

cause excessive oil and motor temperatures. The pump should be shaded and located in such a way as to permit
ample air circulation.

5.0.2

Under cold conditions, the pump should be insulated and a heater should be supplied in order to maintain the
hydraulic fluid at an ambient temperature above 30ºF (-1ºC).

6.0

START-UP PROCEDURE-FLOODED SUCTION

The following start-up procedure is complete and does repeat instructions on filling the gear box and pump.

6.0.1

Flooded Suction: Refer to Section II, Paragraph 1.0.11. for instructions on filling gear box with hydraulic fluid.

NOTE: Refer to Paragraph 12.3 (page#11) for special start-up instructions after replacing diaphragm.

6.0.2

After having let pump stand for 30 minutes and having rechecked fluid level, set pump capacity indicator at
approximately 30%. Be certain that pump suction and discharge lines are open.

6.0.3

Make certain that pumping chamber is flooded by loosening Vent Plug (FIG.#5604) and allowing solution to
appear. Then tighten discharge vent plug. This procedure will also allow air to vent from pumping chamber. THE
“dia-PUMP” WILL NOT FUNCTION IF AIR IS TRAPPED IN THE HYDRAULIC FLUID OR LIQUID PUMP
CHAMBERS. Start Pump.

6.0.4

The pump is now ready for “on line” service.

6.0.5

You may calculate what the desired capacity is, as a percentage of either the maximum capacity rating
on the pump data plate, or the nominal capacity at the required system pressure.

7.0

START-UP PROCEDURE SUCTION LIFT

7.0.1

If the “dia-Pump” is to be used where suction lift is required, A FOOT VALVE STRAINER MUST BE
INSTALLED on the end of the suction line. A pipe tee is installed on the top end of the suction line with
one leg to the pump suction, one leg to the suction line and one leg pointing straight up and valved.
Open valve and force prime pump and piping with water. Start pump.

WARNING: Beware of application where water is not compatible with chemical to be pumped.
Example: Never force prime when pumping acid or oil based products.

8.0

START-UP AFTER SUCTION HAS RUN DRY

In applications where the suction tank does not have a low level cutoff interconnected into the pump motor circuit,
the pump may occasionally run dry. THIS MUST BE AVOIDED BECAUSE DAMAGE TO THE PUMP CAN
RESULT AND THE SERVIC LIFE WILL BE SIGNIFICANTLY REDUCED WHEN THE PUMP IS ALLOWED TO
RUN WITH A DRY LIQUID END.

Before restarting a pump that has run dry and which has not been damaged by running dry, follow the procedure
in Paragraph 6.0 through 6.0.3 of Section II